Overview
The great dusky swift (Cypseloides senex) is a species of bird in subfamily Cypseloidinae of the swift family Apodidae. It is found in Argentina, Brazil, Paraguay, and possibly Bolivia.
Summary from Wikipedia, available under CC BY-SA 4.0.
Where to see it
Destination guides featuring this bird
Range and habitat
Central and southern Brazil to eastern Paraguay and northeastern Argentina.
Range description: AviList Global Avian Checklist.
Continents
Sources and further reading
- Wikipedia: Great dusky swift
- eBird: sightings, maps and photos
- xeno-canto: sound recordings
- Birds of the World: full species account (subscription)
- BirdLife DataZone: status and threats
- IUCN Red List (threat status)
- AviList global checklist (taxonomy)
Last updated September 29, 2026.
